481 lines
10 KiB
C
481 lines
10 KiB
C
/*
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* FSL SoC setup code
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*
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* Maintained by Kumar Gala (see MAINTAINERS for contact information)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/stddef.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/major.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/fsl_devices.h>
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#include <asm/system.h>
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#include <asm/atomic.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/prom.h>
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#include <sysdev/fsl_soc.h>
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#include <mm/mmu_decl.h>
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static phys_addr_t immrbase = -1;
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phys_addr_t get_immrbase(void)
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{
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struct device_node *soc;
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if (immrbase != -1)
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return immrbase;
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soc = of_find_node_by_type(NULL, "soc");
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if (soc) {
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unsigned int size;
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void *prop = get_property(soc, "reg", &size);
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immrbase = of_translate_address(soc, prop);
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of_node_put(soc);
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};
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return immrbase;
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}
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EXPORT_SYMBOL(get_immrbase);
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static int __init gfar_mdio_of_init(void)
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{
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struct device_node *np;
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unsigned int i;
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struct platform_device *mdio_dev;
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struct resource res;
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int ret;
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for (np = NULL, i = 0;
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(np = of_find_compatible_node(np, "mdio", "gianfar")) != NULL;
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i++) {
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int k;
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struct device_node *child = NULL;
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struct gianfar_mdio_data mdio_data;
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memset(&res, 0, sizeof(res));
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memset(&mdio_data, 0, sizeof(mdio_data));
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ret = of_address_to_resource(np, 0, &res);
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if (ret)
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goto err;
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mdio_dev =
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platform_device_register_simple("fsl-gianfar_mdio",
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res.start, &res, 1);
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if (IS_ERR(mdio_dev)) {
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ret = PTR_ERR(mdio_dev);
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goto err;
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}
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for (k = 0; k < 32; k++)
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mdio_data.irq[k] = -1;
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while ((child = of_get_next_child(np, child)) != NULL) {
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u32 *id = get_property(child, "reg", NULL);
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mdio_data.irq[*id] = irq_of_parse_and_map(child, 0);
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}
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ret =
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platform_device_add_data(mdio_dev, &mdio_data,
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sizeof(struct gianfar_mdio_data));
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if (ret)
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goto unreg;
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}
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return 0;
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unreg:
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platform_device_unregister(mdio_dev);
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err:
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return ret;
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}
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arch_initcall(gfar_mdio_of_init);
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static const char *gfar_tx_intr = "tx";
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static const char *gfar_rx_intr = "rx";
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static const char *gfar_err_intr = "error";
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static int __init gfar_of_init(void)
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{
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struct device_node *np;
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unsigned int i;
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struct platform_device *gfar_dev;
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struct resource res;
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int ret;
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for (np = NULL, i = 0;
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(np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
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i++) {
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struct resource r[4];
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struct device_node *phy, *mdio;
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struct gianfar_platform_data gfar_data;
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unsigned int *id;
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char *model;
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void *mac_addr;
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phandle *ph;
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int n_res = 1;
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memset(r, 0, sizeof(r));
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memset(&gfar_data, 0, sizeof(gfar_data));
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ret = of_address_to_resource(np, 0, &r[0]);
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if (ret)
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goto err;
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r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
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r[1].flags = IORESOURCE_IRQ;
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model = get_property(np, "model", NULL);
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/* If we aren't the FEC we have multiple interrupts */
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if (model && strcasecmp(model, "FEC")) {
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r[1].name = gfar_tx_intr;
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r[2].name = gfar_rx_intr;
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r[2].start = r[2].end = irq_of_parse_and_map(np, 1);
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r[2].flags = IORESOURCE_IRQ;
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r[3].name = gfar_err_intr;
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r[3].start = r[3].end = irq_of_parse_and_map(np, 2);
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r[3].flags = IORESOURCE_IRQ;
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n_res += 2;
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}
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gfar_dev =
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platform_device_register_simple("fsl-gianfar", i, &r[0],
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n_res + 1);
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if (IS_ERR(gfar_dev)) {
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ret = PTR_ERR(gfar_dev);
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goto err;
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}
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mac_addr = get_property(np, "local-mac-address", NULL);
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if (mac_addr == NULL)
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mac_addr = get_property(np, "mac-address", NULL);
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if (mac_addr == NULL) {
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/* Obsolete */
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mac_addr = get_property(np, "address", NULL);
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}
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if (mac_addr)
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memcpy(gfar_data.mac_addr, mac_addr, 6);
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if (model && !strcasecmp(model, "TSEC"))
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gfar_data.device_flags =
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FSL_GIANFAR_DEV_HAS_GIGABIT |
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FSL_GIANFAR_DEV_HAS_COALESCE |
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FSL_GIANFAR_DEV_HAS_RMON |
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FSL_GIANFAR_DEV_HAS_MULTI_INTR;
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if (model && !strcasecmp(model, "eTSEC"))
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gfar_data.device_flags =
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FSL_GIANFAR_DEV_HAS_GIGABIT |
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FSL_GIANFAR_DEV_HAS_COALESCE |
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FSL_GIANFAR_DEV_HAS_RMON |
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FSL_GIANFAR_DEV_HAS_MULTI_INTR |
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FSL_GIANFAR_DEV_HAS_CSUM |
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FSL_GIANFAR_DEV_HAS_VLAN |
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FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
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ph = (phandle *) get_property(np, "phy-handle", NULL);
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phy = of_find_node_by_phandle(*ph);
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if (phy == NULL) {
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ret = -ENODEV;
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goto unreg;
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}
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mdio = of_get_parent(phy);
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id = (u32 *) get_property(phy, "reg", NULL);
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ret = of_address_to_resource(mdio, 0, &res);
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if (ret) {
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of_node_put(phy);
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of_node_put(mdio);
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goto unreg;
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}
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gfar_data.phy_id = *id;
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gfar_data.bus_id = res.start;
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of_node_put(phy);
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of_node_put(mdio);
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ret =
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platform_device_add_data(gfar_dev, &gfar_data,
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sizeof(struct
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gianfar_platform_data));
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if (ret)
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goto unreg;
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}
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return 0;
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unreg:
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platform_device_unregister(gfar_dev);
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err:
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return ret;
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}
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arch_initcall(gfar_of_init);
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static int __init fsl_i2c_of_init(void)
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{
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struct device_node *np;
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unsigned int i;
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struct platform_device *i2c_dev;
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int ret;
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for (np = NULL, i = 0;
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(np = of_find_compatible_node(np, "i2c", "fsl-i2c")) != NULL;
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i++) {
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struct resource r[2];
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struct fsl_i2c_platform_data i2c_data;
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unsigned char *flags = NULL;
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memset(&r, 0, sizeof(r));
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memset(&i2c_data, 0, sizeof(i2c_data));
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ret = of_address_to_resource(np, 0, &r[0]);
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if (ret)
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goto err;
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r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
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r[1].flags = IORESOURCE_IRQ;
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i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
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if (IS_ERR(i2c_dev)) {
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ret = PTR_ERR(i2c_dev);
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goto err;
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}
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i2c_data.device_flags = 0;
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flags = get_property(np, "dfsrr", NULL);
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if (flags)
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i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
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flags = get_property(np, "fsl5200-clocking", NULL);
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if (flags)
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i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
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ret =
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platform_device_add_data(i2c_dev, &i2c_data,
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sizeof(struct
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fsl_i2c_platform_data));
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if (ret)
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goto unreg;
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}
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return 0;
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unreg:
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platform_device_unregister(i2c_dev);
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err:
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return ret;
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}
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arch_initcall(fsl_i2c_of_init);
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#ifdef CONFIG_PPC_83xx
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static int __init mpc83xx_wdt_init(void)
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{
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struct resource r;
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struct device_node *soc, *np;
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struct platform_device *dev;
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unsigned int *freq;
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int ret;
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np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
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if (!np) {
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ret = -ENODEV;
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goto nodev;
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}
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soc = of_find_node_by_type(NULL, "soc");
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if (!soc) {
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ret = -ENODEV;
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goto nosoc;
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}
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freq = (unsigned int *)get_property(soc, "bus-frequency", NULL);
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if (!freq) {
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ret = -ENODEV;
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goto err;
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}
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memset(&r, 0, sizeof(r));
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ret = of_address_to_resource(np, 0, &r);
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if (ret)
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goto err;
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dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
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if (IS_ERR(dev)) {
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ret = PTR_ERR(dev);
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goto err;
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}
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ret = platform_device_add_data(dev, freq, sizeof(int));
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if (ret)
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goto unreg;
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of_node_put(soc);
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of_node_put(np);
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return 0;
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unreg:
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platform_device_unregister(dev);
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err:
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of_node_put(soc);
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nosoc:
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of_node_put(np);
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nodev:
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return ret;
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}
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arch_initcall(mpc83xx_wdt_init);
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#endif
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static enum fsl_usb2_phy_modes determine_usb_phy(char * phy_type)
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{
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if (!phy_type)
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return FSL_USB2_PHY_NONE;
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if (!strcasecmp(phy_type, "ulpi"))
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return FSL_USB2_PHY_ULPI;
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if (!strcasecmp(phy_type, "utmi"))
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return FSL_USB2_PHY_UTMI;
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if (!strcasecmp(phy_type, "utmi_wide"))
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return FSL_USB2_PHY_UTMI_WIDE;
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if (!strcasecmp(phy_type, "serial"))
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return FSL_USB2_PHY_SERIAL;
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return FSL_USB2_PHY_NONE;
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}
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static int __init fsl_usb_of_init(void)
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{
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struct device_node *np;
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unsigned int i;
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struct platform_device *usb_dev_mph = NULL, *usb_dev_dr = NULL;
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int ret;
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for (np = NULL, i = 0;
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(np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL;
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i++) {
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struct resource r[2];
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struct fsl_usb2_platform_data usb_data;
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unsigned char *prop = NULL;
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memset(&r, 0, sizeof(r));
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memset(&usb_data, 0, sizeof(usb_data));
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ret = of_address_to_resource(np, 0, &r[0]);
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if (ret)
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goto err;
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r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
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r[1].flags = IORESOURCE_IRQ;
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usb_dev_mph =
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platform_device_register_simple("fsl-ehci", i, r, 2);
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if (IS_ERR(usb_dev_mph)) {
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ret = PTR_ERR(usb_dev_mph);
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goto err;
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}
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usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
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usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
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usb_data.operating_mode = FSL_USB2_MPH_HOST;
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prop = get_property(np, "port0", NULL);
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if (prop)
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usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
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prop = get_property(np, "port1", NULL);
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if (prop)
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usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
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prop = get_property(np, "phy_type", NULL);
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usb_data.phy_mode = determine_usb_phy(prop);
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ret =
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platform_device_add_data(usb_dev_mph, &usb_data,
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sizeof(struct
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fsl_usb2_platform_data));
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if (ret)
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goto unreg_mph;
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}
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for (np = NULL;
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(np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL;
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i++) {
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struct resource r[2];
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struct fsl_usb2_platform_data usb_data;
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unsigned char *prop = NULL;
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memset(&r, 0, sizeof(r));
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memset(&usb_data, 0, sizeof(usb_data));
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ret = of_address_to_resource(np, 0, &r[0]);
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if (ret)
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goto unreg_mph;
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r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
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r[1].flags = IORESOURCE_IRQ;
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usb_dev_dr =
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platform_device_register_simple("fsl-ehci", i, r, 2);
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if (IS_ERR(usb_dev_dr)) {
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ret = PTR_ERR(usb_dev_dr);
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goto err;
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}
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usb_dev_dr->dev.coherent_dma_mask = 0xffffffffUL;
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usb_dev_dr->dev.dma_mask = &usb_dev_dr->dev.coherent_dma_mask;
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usb_data.operating_mode = FSL_USB2_DR_HOST;
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prop = get_property(np, "phy_type", NULL);
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usb_data.phy_mode = determine_usb_phy(prop);
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ret =
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platform_device_add_data(usb_dev_dr, &usb_data,
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sizeof(struct
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fsl_usb2_platform_data));
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if (ret)
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goto unreg_dr;
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}
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return 0;
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unreg_dr:
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if (usb_dev_dr)
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platform_device_unregister(usb_dev_dr);
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unreg_mph:
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if (usb_dev_mph)
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platform_device_unregister(usb_dev_mph);
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err:
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return ret;
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}
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arch_initcall(fsl_usb_of_init);
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